Opal Tumbled - Height: 1.6 cm - Width: 1.1 cm- 12 g - (30)
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Thirty pieces of Welo opal from Ethiopia, rough-cut (sbozzati) and burattato, total weight 12 g, each piece measuring about 1.6 × 1.1 × 0.6 cm, supplied in a protective box with a mix of opal forms in a single bag.
AI-assisted summary
Description from the seller
This lot consists of 30 pieces of rough, preform Welo Opal from Ethiopia, with a total declared weight of 12 grams (equivalent to 60 carats). (The scale reads 13 g including the bag).
Slightly higher mass and a very interesting color density.
Description and Mineral Quality
The samples belong to the renowned hydro-filled opal variety mined in the Welo region of Ethiopia.
They present as small natural nodules that have undergone a preliminary shaping and surface cleaning (pre-formed / semi-tumbled), preserving freeform and asymmetrical shapes.
Close-up images highlight the following qualitative characteristics:
* Opalescence and Colors: The play of color is lively and well distributed. There are electric flashes of light with a strong dominance of bright green, neon yellow, and intense orange, alongside secondary red and blue reflections.
* Body Tone: Most pieces show a crystal (semi-transparent) or white/milky base. A single piece stands out with a decidedly warmer, amber-toned coloration (clearly isolated on the right in the detail images), tending toward honey opal classification with a strong red/orange internal reflection.
* Inclusions: The purity level is typical of commercial rough material; the surface is glossy, but small matrix rock spots and microscopic natural internal fractures related to the original nodular geological formation remain visible.
The value is slightly higher than a completely uncut stone, since the initial crust cleaning has already been performed, reducing risk for the buyer.
*Not being an expert, I leave to those with expertise the correct evaluation of whether the lot is natural mineral or synthetic.*
Description is AI assistance
Look at the image for an accurate assessment
Shipping with tracking and insured.
This lot consists of 30 pieces of rough, preform Welo Opal from Ethiopia, with a total declared weight of 12 grams (equivalent to 60 carats). (The scale reads 13 g including the bag).
Slightly higher mass and a very interesting color density.
Description and Mineral Quality
The samples belong to the renowned hydro-filled opal variety mined in the Welo region of Ethiopia.
They present as small natural nodules that have undergone a preliminary shaping and surface cleaning (pre-formed / semi-tumbled), preserving freeform and asymmetrical shapes.
Close-up images highlight the following qualitative characteristics:
* Opalescence and Colors: The play of color is lively and well distributed. There are electric flashes of light with a strong dominance of bright green, neon yellow, and intense orange, alongside secondary red and blue reflections.
* Body Tone: Most pieces show a crystal (semi-transparent) or white/milky base. A single piece stands out with a decidedly warmer, amber-toned coloration (clearly isolated on the right in the detail images), tending toward honey opal classification with a strong red/orange internal reflection.
* Inclusions: The purity level is typical of commercial rough material; the surface is glossy, but small matrix rock spots and microscopic natural internal fractures related to the original nodular geological formation remain visible.
The value is slightly higher than a completely uncut stone, since the initial crust cleaning has already been performed, reducing risk for the buyer.
*Not being an expert, I leave to those with expertise the correct evaluation of whether the lot is natural mineral or synthetic.*
Description is AI assistance
Look at the image for an accurate assessment
Shipping with tracking and insured.
Details
Number of objects
30
Main mineral
Opal
Mineral form
Tumbled
Supplement
1 bag of opal mix with mixed shapes - protective box
Weight
12 g
Origin (region/city)
Spain
Country of origin
Ethiopia
Height
1.6 cm
Width
1.1 cm
Depth
6 mm
Sold by
Disclaimer
It is believed that certain gemstones and minerals have beneficial health and spiritual properties. However, using or wearing gemstones or minerals does not mean that you can treat, cure or prevent any disease. Please consult your health care professional for information on health care issues and do not stop any medications or courses of treatment, without first consulting your health care professional. The use of gemstones or minerals as a wellness therapy is one of personal choice. While stones or crystals have been used historically to relieve or prevent symptoms, the objects sold on our website offer no guarantee of results. Therefore, Catawiki cannot guarantee or be held liable for the effectiveness of these objects sold herein.
It is believed that certain gemstones and minerals have beneficial health and spiritual properties. However, using or wearing gemstones or minerals does not mean that you can treat, cure or prevent any disease. Please consult your health care professional for information on health care issues and do not stop any medications or courses of treatment, without first consulting your health care professional. The use of gemstones or minerals as a wellness therapy is one of personal choice. While stones or crystals have been used historically to relieve or prevent symptoms, the objects sold on our website offer no guarantee of results. Therefore, Catawiki cannot guarantee or be held liable for the effectiveness of these objects sold herein.
